aqualung
noun /ˈækwəlʌŋ/
/ˈɑːkwəlʌŋ/
(US English also Aqualung™)
- enlarge imagea piece of breathing equipment that a diver wears on his/her back when swimming underwaterTopics Sports: water sportsc2Word Origin1950s (originally a proprietary name in the US): from Latin aqua ‘water’ + lung.